- Rotation of decals - blood, etc is rotated slightly in order to 'change up' the visuals. Thanks, Scott.
- Transitions between layers - fade in/fade out is currently the only one implemented, but it adds a whole lot to the menu system and is cool.
- Explosive bullets leave behind scorch marks on the ground (see below). They should probably leave them on the wall too, but it looks pretty good as is.
- A lot of refactoring of the nastier bits of the decal system. It's still very slow, though.